Struct hnsw_rs::prelude::DistDot

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pub struct DistDot;
Expand description

This is essentially the Cosine distance but we suppose all vectors (graph construction and request vectors have been l2 normalized to unity BEFORE INSERTING in HNSW!.
No control is made, so it is the user responsability to send normalized vectors everywhere in inserting and searching.

In large dimensions (hundreds) this pre-normalization spare cpu time.
At low dimensions (a few ten’s there is not a significant gain).
This distance makes sense only for f16, f32 or f64 We provide for avx2 implementations for f32 that provides consequent gains in large dimensions

Trait Implementations§

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impl Clone for DistDot

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fn clone(&self) -> DistDot

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Default for DistDot

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fn default() -> DistDot

Returns the “default value” for a type. Read more
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impl Distance<f32> for DistDot

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fn eval(&self, va: &[f32], vb: &[f32]) -> f32

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impl Copy for DistDot

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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impl<T, U> TryFrom<U> for T
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type Error = Infallible

The type returned in the event of a conversion error.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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fn vzip(self) -> V